If you are still using incandescent light bulbs, you are inevitably wasting money. Lighting with incandescent bulbs is an inefficient way to light a home, and with todays technology, upgrading to a CFL (compact fluorescent light)is a simple, effective way to slow the rate of global climate change while saving money. It’s good for the environment, it’s economical, it’s efficient, and it’s easy

Light Comparison Cost - How much does it cost to run a light bulb? - Are CFLs worth it?

Incandescent bulbs waste 90 percent of their energy generating heat. In the summer months, this "heat" also directly affects your cooling costs. Replacing incandescent bulbs with CFLs lower the electrical bill for lighting up to 75%, as well as a reduction on your cooling costs.

With the same amount of omitting light, the chart below shows the wattage comparison:

CFL Wattage VS. Incandescent Wattage 5 259 5015 6023 7525 10028 120

"If you replaced 20 75-watt incandescent bulbs with 23-watt CFLs, you would save 1,040 watts for every hour that the lamps burned. At five hours per day, this means saving over 2,000 kWh or about $208 back in your pocket every year. (Replace them with a 20-watt CFL and save more – but slightly less light.)"

Be responsible - Although a CFL's life span is 5-10 years, there is always a chance of breaking or damaging one. CFL's contain a small amount of mercury gas, which should be properly recycled at the end of its life cycle.